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Secure AI virtual data roomsmcptools
mcptools is a Go-based CLI utility that discovers, calls, and manages tools, resources, and prompts from Model Context Protocol (MCP) servers. It supports multiple transport methods (stdio, HTTP, SSE) and output formats, with features including interactive shells, web interfaces, mock servers, and request proxying.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | f/mcptools |
| Owner | f |
| Primary language | Go |
| License | MIT — OSI-approved |
| Stars | 1.6k |
| Forks | 124 |
| Open issues | 35 |
| Latest release | v0.7.1 (2025-05-05) |
| Last updated | 2025-12-18 |
| Source | https://github.com/f/mcptools |
What mcptools is
A command-line interface written in Go for MCP server interaction using JSON-RPC 2.0. Supports stdio transport, HTTP/HTTPS with SSE and streamable protocols, and offers functionality for discovery, tool invocation, resource access, session management, and server mocking/proxying.
Get the mcptools source
Clone the repository and explore it locally.
git clone https://github.com/f/mcptools.gitcd mcptools# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Binary installation via Homebrew (macOS) is straightforward; Windows and Linux users must build from source via 'go install', requiring Go toolchain setup.
- Transport auto-detection works for `/sse` paths and HTTP/HTTPS URLs; explicit specification may be needed for non-standard MCP server configurations.
- Interactive shell and web interface are convenient for exploration but not documented as suitable for production monitoring or long-running services.
- Mock server and proxy modes add extensibility; ensure shell script execution permissions and error handling are configured for proxy mode reliability.
- Open issues (35 count) and relatively recent project creation (2025-03-25) suggest active development; review roadmap and pending issues for feature/stability impact.
When to avoid it — and what to weigh
- Heavy Stateful RPC Workflows — If your use case requires complex multi-step sessions with complex state management beyond basic request/response, consider purpose-built client SDKs or custom integrations.
- GUI-First User Experience Required — This is a CLI-only tool; if end-users need graphical interfaces, the web interface mode provides basic browsing but is not a full desktop application.
- Windows Native GUI Dependency — While Windows is supported via source compilation, this is primarily a command-line utility; native Windows GUI integration is not available.
- Production SLA-Critical Transport — Project is active (last push 2025-12-18) but still at v0.7.1; HTTP SSE transport only supports MCP protocol version 2024-11-05, limiting protocol flexibility.
License & commercial use
MIT License (MIT) – permissive open-source license permitting free use, modification, distribution, and commercial incorporation with attribution required.
MIT License explicitly permits commercial use without restriction. However, mcptools itself is a development and testing utility; any MCP servers or data accessed through it remain subject to their own licenses. Verify compliance of connected servers and their license terms before commercial deployment.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Adequate |
| License clarity | Clear |
| Deployment complexity | Low |
| DEV.co fit | Good |
| Assessment confidence | High |
Execution of arbitrary shell scripts in proxy mode requires careful input validation and access control. Stdio transport inherits security posture of spawned MCP servers. HTTP/HTTPS connections should use TLS; no explicit TLS pinning or certificate validation documentation provided. No secrets management documented; ensure credentials in MCP server configurations are stored securely. No authentication/authorization layer in the tool itself; rely on MCP server-level controls.
Alternatives to consider
Official MCP Inspector (Anthropic)
Official tool for MCP discovery; may have different transport support, tighter Anthropic ecosystem integration, and official security/support. Compare features via linked blog post.
Custom Go/Python MCP Client SDKs
Purpose-built SDKs offer programmatic control, deeper session management, and integration into larger applications. Trade-off: require code development vs. CLI simplicity.
For HTTP-only MCP servers, direct curl calls reduce tool dependency. Trade-off: manual JSON formatting, no discovery helpers, poor UX for exploration.
Build on mcptools with DEV.co software developers
Start with mcptools to explore MCP server capabilities via CLI. Perfect for development, testing, and scripting. MIT-licensed and actively maintained.
Talk to DEV.coRelated open-source tools
Surfaced by semantic similarity across the DEV.co open-source index.
Related on DEV.co
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mcptools FAQ
Can I use mcptools in production to call MCP tools?
What is the difference between HTTP SSE and Streamable HTTP transport?
How do I integrate mcptools into CI/CD pipelines?
Is there an SDK or Go library for programmatic use?
Senior engineers for your next build
The gap between a working mcptools demo and a supportable mcp servers system is where DEV.co works. We offer custom software development and web development services for exactly that stretch.
Ready to Integrate MCP Servers?
Start with mcptools to explore MCP server capabilities via CLI. Perfect for development, testing, and scripting. MIT-licensed and actively maintained.